James Won, MD
NPI 1245340439 · Neurology Physician · Quincy, IL
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Won, MD is a Neurology Physician provider in Quincy, IL (NPI 1245340439).
Provider details
- NPI number
- 1245340439
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME96798 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
354 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 244 | $108 |
| Nerve Conduction, 9-10 Studies95911 | 61 | $233 |
| Nerve Conduction, 7-8 Studies95910 | 32 | $193 |
| Nerve Conduction, 3-4 Studies95908 | 17 | $123 |
Typical Medicare-allowed amounts for these services range $108–$233 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$171 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2024-11-22
- Certified
- 2024-11-22
Frequently asked questions
- What is James Won's NPI number?
- James Won's National Provider Identifier (NPI) is 1245340439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Won's specialty?
- James Won is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is James Won located?
- James Won's practice location on file with NPPES is 927 Broadway St, Quincy, IL 62301-2719.
- What is James Won's phone number?
- The practice phone number listed in the NPPES registry for James Won is (217) 224-6423.
- Does James Won accept Medicare?
- James Won is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Won's NPI active?
- Yes — James Won's NPI (1245340439) is active in the NPPES registry as of the last update on 2024-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.